Objective To analyze the clinical and therapeutic characteristics of Epstein-Barr virus (EBV)-negative posttransplant lymphoproliferative disease (PTLD) with diffuse large B-cell lymphoma (DLBCL) in the context of specific cases and literature. Methods A case of EBV-negative DLBCL (GCB type) after kidney transplantation is reported. The patient was a 45-year-old male who underwent living-related kidney transplantation in 2016 and has been receiving triple immunosuppressive therapy with tacrolimus, mycophenolate mofetil and methylprednisolone since then. In 2024, the patient presented with intermittent fever, night sweats and gastrointestinal symptoms. The diagnosis was confirmed by endoscopic pathology, immunohistochemical staining and positron emission tomography/computed tomography. The R-CDOP regimen (rituximab + cyclophosphamide + liposomal doxorubicin + vincristine + dexamethasone) was used for treatment. Results The patient was diagnosed with EBV-negative DLBCL (GCB type, Ann Arbor stage Ⅳ B). After 4 cycles of R-CDOP chemotherapy, the efficacy assessment was partial remission, and the transplant kidney function remained stable. Conclusions For EBV-negative PTLD after kidney transplantation, it is necessary to break through the "virus-dependent" diagnostic thinking. In clinical practice, the focus should be on protecting the transplant kidney, and individualized treatment plans should be developed for patients.

OBJECTIVE To evaluate the influence of gene polymorphism on plasma minimum concentration （cmin） of voriconazole （VRZ） in patients with invasive fungal infection. METHODS The Cochrane Library， Embase， PubMed， Web of Science， China Biomedical Literature Database， CNKI， VIP and Wanfang Data were searched for literature on the correlation between gene polymorphisms and cmin of VRZ from inception to April 2024. After screening the literature， extracting data， and evaluating the quality of the literature， meta-analysis was performed using R 4.3.2 software. RESULTS A total of 21 studies with 2 454 patients were included. The results of meta-analysis showed that the VRZ cmin of CYP2C19 IM and PM types was significantly higher than EM type， and the VRZ cmin of IM type was significantly lower than PM type （P＜0.01）. The VRZ cmin of CYP2C9 rs1057910 AA type was significantly higher than AC/CC type， and that of CYP3A5 rs776746 CC type was significantly higher than TT type （P＜0.01）. The VRZ cmin of POR rs10954732 GG type was significantly higher than GA and AA types， and that of POR rs1057868 CT type was significantly lower than TT type （P＜0.01）. The VRZ cmin of ABCB1 rs1045642 CC type was significantly higher than TT type （P＜0.05）. The VRZ cmin of NR1I2 rs2472677 CT type was significantly higher than TT type， and rs7643645 AA type was significantly higher than AG type （P＜0.05）. The VRZ cmin of ABCC2 rs717620 CC type was significantly lower than CT type and TT type， and the CT type was significantly lower than TT type （P＜0.01）. CONCLUSIONS Mutant alleles in CYP2C19， CYP2C9 rs1057910， CYP3A5 rs776746， POR rs10954732， ABCB1 rs1045642 and NR1I2 rs7643645 can lead to a decrease in VRZ plasma concentration， and mutant allele in ABCC2 rs717620 can lead to an increase in VRZ plasma concentration.

Immunosuppressants （including cyclosporine， tacrolimus， mycophenolate esters， glucocorticoids， etc.） are the first choice of drugs to prevent organ rejection after liver transplantation， which can effectively reduce the host immune response to the graft， improve the success rate of transplantation， and prolong the survival of patients. Liver transplantation is associated with intestinal flora， while immunosuppressive agents interact with intestinal flora. Immunosuppressive agents change the abundance， composition and metabolites of intestinal flora， while a series of enzymes and metabolites produced by intestinal flora may chemically alter the absorption and metabolism of immunosuppressants. In addition， the incidence of postoperative infection in liver transplantion patients is relatively high， while gut flora affects inflammatory factors， and immunosuppressants interact with inflammatory factors. To some extent， immunosuppressants can be thought of as acting through intestinal flora in patients after liver transplantation.

OBJECTIVE To evaluate the influence of gene polymorphism on plasma minimum concentration （cmin） of voriconazole （VRZ） in patients with invasive fungal infection. METHODS The Cochrane Library， Embase， PubMed， Web of Science， China Biomedical Literature Database， CNKI， VIP and Wanfang Data were searched for literature on the correlation between gene polymorphisms and cmin of VRZ from inception to April 2024. After screening the literature， extracting data， and evaluating the quality of the literature， meta-analysis was performed using R 4.3.2 software. RESULTS A total of 21 studies with 2 454 patients were included. The results of meta-analysis showed that the VRZ cmin of CYP2C19 IM and PM types was significantly higher than EM type， and the VRZ cmin of IM type was significantly lower than PM type （P＜0.01）. The VRZ cmin of CYP2C9 rs1057910 AA type was significantly higher than AC/CC type， and that of CYP3A5 rs776746 CC type was significantly higher than TT type （P＜0.01）. The VRZ cmin of POR rs10954732 GG type was significantly higher than GA and AA types， and that of POR rs1057868 CT type was significantly lower than TT type （P＜0.01）. The VRZ cmin of ABCB1 rs1045642 CC type was significantly higher than TT type （P＜0.05）. The VRZ cmin of NR1I2 rs2472677 CT type was significantly higher than TT type， and rs7643645 AA type was significantly higher than AG type （P＜0.05）. The VRZ cmin of ABCC2 rs717620 CC type was significantly lower than CT type and TT type， and the CT type was significantly lower than TT type （P＜0.01）. CONCLUSIONS Mutant alleles in CYP2C19， CYP2C9 rs1057910， CYP3A5 rs776746， POR rs10954732， ABCB1 rs1045642 and NR1I2 rs7643645 can lead to a decrease in VRZ plasma concentration， and mutant allele in ABCC2 rs717620 can lead to an increase in VRZ plasma concentration.

Obesity is a well-established risk factor for thrombotic events such as venous thromboembolism， and the alterations in pharmacokinetics induced by obesity pose challenges for anticoagulation management. This article systematically reviews the advances of the use of various anticoagulants in obese patients， and finds that the dosage of low-molecular-weight heparin needs to be adjusted according to preventive or therapeutic goals in severely obese patients， the preventive dose may be increased to 40 mg， q12 h or 0.5 mg/（kg·d）， while the therapeutic dose is recommended to be reduced to 0.8 mg/（kg·d）， q12 h. Direct oral anticoagulant drugs are safe and effective for general obese patients； in severely obese patients， standard doses of rivaroxaban or apixaban may be used， warranting cautious application and consideration for therapeutic drug monitoring. In special clinical scenarios such as obesity combined with trauma， pregnancy， advanced age， or bariatric surgery， anticoagulation strategies should be individualized， with close attention to monitoring. Future research should focus on optimizing anticoagulant regimens for special populations and addressing anticoagulation management in obese patients with other embolic diseases.

Objective To analyze the characteristics of HIV-1 pretreatment drug resistance(PDR)and molecular transmission networks in Yubei District,Chongqing,providing evidence for targeted interventions.Methods Using a cross-sectional design,plasma samples were collected from HIV/AIDS patients receiving antiretroviral therapy(ART)in Yubei District from January 2022 to December 2023.Pol gene fragments were extracted and amplified for HIV-1 genotyping and drug resistance analysis.Molecular transmission networks were constructed based on genetic distance calculations.Results Among 478 HIV-1 pol sequences,eight geno-types were identified:with CRF07_BC(60.4%,289/478),CRF08_BC(15.5%,74/478),CRF01_AE(11.7%,56/478),and CRF85_BC(5.9%,28/478).The overall PDR rate was 6.3%(30/478),with resistance to nucleoside reverse transcriptase inhibitors(NRTIs)and non-nucleoside reverse transcriptase inhibitors(NNRTIs)at 1.7%(8/478)and 5.2%(25/478),respectively.No protease inhibitor(PI)resistance was de-tected.The molecular network included 177 cases(37.0%network entry rate),forming 53 clusters with 198 connections.Cluster sizes ranged from 2 to 17 nodes,and 75.3%(149/198)of connections were associated with five subdistricts/towns:Shuanglonghu Street,Huixing Street,Luoqi Town,Gulu Town,and Baoshenghu Street.Conclusion HIV-1 genotypes in Yubei District exhibit diversity and complexity,with moderate PDR prevalence.Regional clustering of transmission networks suggests the need for enhanced molecular surveil-lance and targeted interventions based on analytical findings.

BACKGROUND: The primary limitation to kidney transplantation is organ shortage. Recent progress in gene editing and immunosuppressive regimens has made xenotransplantation with porcine organs a possibility. However, evidence in pig-to-human xenotransplantation remains scarce, and antibody-mediated rejection (AMR) is a major obstacle to clinical applications of xenotransplantation. METHODS: We conducted a kidney xenotransplantation in a brain-dead human recipient using a porcine kidney with five gene edits (5GE) on March 25, 2024 at Xijing Hospital, China. Clinical-grade immunosuppressive regimens were employed, and the observation period lasted 22 days. We collected and analyzed the xenograft function, ultrasound findings, sequential protocol biopsies, and immune surveillance of the recipient during the observation. RESULTS: The combination of 5GE in the porcine kidney and clinical-grade immunosuppressive regimens prevented hyperacute rejection. The xenograft kidney underwent delayed graft function in the first week, but urine output increased later and the single xenograft kidney maintained electrolyte and pH homeostasis from postoperative day (POD) 12 to 19. We observed AMR at 24 h post-transplantation, due to the presence of pre-existing anti-porcine antibodies and cytotoxicity before transplantation; this AMR persisted throughout the observation period. Plasma exchange and intravenous immunoglobulin treatment mitigated the AMR. We observed activation of latent porcine cytomegalovirus toward the end of the study, which might have contributed to coagulation disorder in the recipient. CONCLUSIONS 5GE and clinical-grade immunosuppressive regimens were sufficient to prevent hyperacute rejection during pig-to-human kidney xenotransplantation. Pre-existing anti-porcine antibodies predisposed the xenograft to AMR. Plasma exchange and intravenous immunoglobulin were safe and effective in the treatment of AMR after kidney xenotransplantation.
Transplantation, Heterologous/methods* ; Kidney Transplantation/methods* ; Heterografts/pathology* ; Immunoglobulins, Intravenous/administration & dosage* ; Graft Survival/immunology* ; Humans ; Animals ; Sus scrofa ; Graft Rejection/prevention & control* ; Kidney/pathology* ; Gene Editing ; Species Specificity ; Immunosuppression Therapy/methods* ; Plasma Exchange ; Brain Death ; Biopsy ; Male ; Aged

Flavonoids, the key active compounds in Epimedii Folium, have both protective and toxic effects on the liver. Their hepatoprotective effects are associated with reducing lipid accumulation and oxidative stress, which contribute to the management of various liver conditions. In contrast, the mechanisms driving Epimedii Folium-induced hepatotoxicity are less understood but likely involve oxidative stress and pyroptosis. Pharmacokinetic studies, especially on icaritin, indicate that it undergoes isopentenyl dehydrogenation, glycosylation, and glucuronidation in vivo, contributing to its pharmacological effects. However, intermediate metabolites of icaritin may interact with biomolecules, potentially leading to liver toxicity. This review offers a detailed examination of the dual effects of Epimedii Folium flavonoids on liver function, emphasizing recent discoveries in their hepatoprotective and hepatotoxic pathways. We also summarize and discuss the pharmacokinetics of these flavonoids, highlighting how their metabolism affects therapeutic efficacy and toxicity. Lastly, we propose strategies to mitigate liver injury, providing new perspectives on the safe use of Epimedii Folium.

Inflammation plays a pivotal role in the etiology and progression of various diseases. In traditional Chinese medicine, the whole plants of Thesium chinense Turcz. and its preparations (e.g. Bairui Granules) have been employed to manage inflammatory conditions. While flavonoids were previously considered the primary anti-inflammatory components, other potentially active constituents have been largely overlooked and not thoroughly investigated. This study presents a novel finding that the total alkaloids of T. chinense (BC-Alk) are potent active substances underlying the traditional and clinical applications of T. chinense and Bairui Granules as anti-inflammatory agents. UPLC-MS/MS analysis identified the composition of BC-Alk as quinolizidine alkaloids. The anti-inflammatory efficacy of BC-Alk was evaluated using a lipopolysaccharide (LPS)-induced lung inflammation model in mice. Results demonstrated that BC-Alk significantly mitigated LPS-induced lung inflammation, attenuated the overproduction of IL-1β and the overproduction of inflammatory factors (TNF-α), and ameliorated lung tissue hyperplasia in mice in vivo. Mechanistic studies in vitro revealed that BC-Alk upregulated the expression of Nrf2 and its downstream proteins NQO1 and glutamate-cystine ligase and modifier subunit (GCLM), inhibited NF-κB phosphorylation, and suppressed NLRP3 activation. Collectively, these findings indicate that BC-Alk exerts potent inhibitory effects against lung inflammation by modulating Nrf2, NF-κB, and NLRP3 pathways. This study provides new insights into the anti-inflammatory constituents of T. chinense and Bairui Granules.
Animals ; Lipopolysaccharides/adverse effects* ; Alkaloids/pharmacology* ; NF-kappa B/metabolism* ; NF-E2-Related Factor 2/metabolism* ; NLR Family, Pyrin Domain-Containing 3 Protein/metabolism* ; Mice ; Signal Transduction/drug effects* ; Anti-Inflammatory Agents/pharmacology* ; Male ; Mice, Inbred C57BL ; Humans ; Drugs, Chinese Herbal/administration & dosage* ; Pneumonia/genetics*

Objective To explore the level characteristics of high mobility group protein B1(HMGB1)in patients with gestational diabetes mellitus(GDM)and its correlations with inflammation,insulin resistance,and placental vascular density.Methods A total of 70 patients with GDM who were hospitalized and delivered in the department of obstetrics of this hospital from August 2021 to May 2024 were selected as the study group,and another 70 healthy pregnant women during the same period were selected as the control group.The general clinical data,fasting plasma glucose(FPG),insulin resistance-related indicators[fasting insulin(FINS),homeostasis model assessment of insulin resistance(HOMA-IR)],serum inflammatory factors[C reactive protein(CRP),tumor necrosis factor-α(TNF-α),interleukin-6(IL-6)],the levels of HMGB1 in pla-cental tissues and peripheral blood,and the placental microvascular density were compared between the two groups.Pearson correlation analysis was used to evaluate the correlations between the levels of HMGB1 in se-rum and placental tissues and insulin resistance,inflammatory factors,and placental vascular density.Results The levels of FPG,FINS,HOMA-IR,CRP,TNF-α,IL-6,the average integrated optical density(IOD)value of HMGB1 in serum and placental tissues,and the percentage of HMGB1-positive cells in the study group were all higher than those in the control group(P＜0.05),while the placental microvascular den-sity was lower than that in the control group(P＜0.05).Pearson correlation analysis showed that the serum HMGB1 level,the average IOD value of HMGB1 in placental tissues,and the percentage of HMGB1-positive cells in the study group were all positively correlated with the levels of HOMA-IR,CRP,TNF-α,and IL-6(P＜0.05),and negatively correlated with the placental microvascular density(P＜0.05).Conclusion The level of HMGB1 in peripheral blood and placental tissues of GDM patients is higher than that of healthy preg-nant women,and it is correlated with inflammatory factors,HOMA-IR and the placental microvascular density.